The Layers Palette

Illustrator offers layers and sublayers, as well as the capability to rearrange specific groups of objects and paths within the Layers palette. You can also target layers and groups. Using this capability, you can assign appearance attributes to an entire layer, and any object moved to or created on the layer will assume the attributes. Layers can also work with Illustrator’s effects and transparency. Rather than merely a handy way to keep track of your artwork, layers are now a very powerful, creative tool.